Utility knife



FIG. 1 is a right side elevational view of the present design.

FIG. 2 is a front elevational view of the present design.

FIG. 3 is an inverted left side elevational view thereof.

FIG. 4 is a bottom plan view thereof.

FIG. 5 is a right side perspective view thereof.

FIG. 6 is a left side perspective view thereof; and,

FIG. 7 is a rear perspective view of the present design.

The ornamental design for a utility knife, as shown.